My 20 gallon planted tank has had one or two hitchhiker snails that come with new plants. I can handle a few by squishing them, but a week ago I bought a lily that freaked me out with hundreds of tiny snails, even after I rinsed the crap out of the tuber and leafs. I gave up smashing them, trying to syphon them with airline tubing, so now I am asking you guys if there are any sure-fire methods of irradicating them entirely. My Cardinals and shrimp aren't interested in them. Unfortunately, soon I will have a mini-snail tank. Is there a cure? I'm afraid to look in the morning because the glass will be completely covered with beige buggers. HELP!!!!!